2016 Mercedes-Benz CLS63 AMG S Cruise Control Isn't Working

Fixing Cruise Control Malfunctions in 2016 Mercedes-Benz CLS63 AMG S

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2016 Mercedes-Benz CLS63 AMG S cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2016 Mercedes-Benz CLS63 AMG S cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What steps should I take to diagnose the non-functioning cruise control in my 2016 Mercedes-Benz CLS63 AMG S?

To effectively diagnose the non-functioning cruise control in your 2016 Mercedes-Benz CLS63 AMG S, begin with the simplest solutions before delving into more complex issues. Start by checking the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable problem. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can prevent the system from engaging. If these initial checks do not resolve the issue, proceed to verify the speed sensors, as faulty sensors can disrupt the cruise control's functionality. Additionally, examine the brake pedal switch, which is crucial for cruise control operation; a defective switch can inadvertently disable the system. If the problem persists, utilize a diagnostic scanner to identify any error codes that may indicate specific malfunctions within the cruise control system. Finally, inspect the wiring and connections associated with the cruise control for any signs of damage or loose connections, as these can also hinder performance. By following this structured approach, you can systematically identify and address the root cause of your cruise control issues.

What are the common problems that could cause the cruise control to stop working in a 2016 Mercedes-Benz CLS63 AMG S?

When dealing with cruise control issues in a 2016 Mercedes-Benz CLS63 AMG S, it's essential to understand the common problems that may arise. One frequent culprit is a faulty cruise control switch, which can hinder the system's ability to engage or disengage as intended. Additionally, a malfunctioning speed sensor can disrupt the system's capacity to maintain a consistent speed, leading to erratic performance. Another potential issue is a defective brake light switch; if this component fails, it may cause the cruise control to disengage unexpectedly when the brakes are applied, creating a frustrating driving experience. Furthermore, problems with the throttle actuator can prevent the cruise control from accurately adjusting the vehicle's speed, while electrical issues, such as wiring faults, can also impede the system's functionality. By identifying and addressing these common problems, DIY enthusiasts can effectively troubleshoot and restore the cruise control system to proper working order.

How urgent is it to address the malfunctioning cruise control in a 2016 Mercedes-Benz CLS63 AMG S?

When it comes to the malfunctioning cruise control in a 2016 Mercedes-Benz CLS63 AMG S, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can significantly compromise your vehicle's ability to maintain a steady speed, which is particularly concerning during long drives or on highways where consistent speed is crucial for both convenience and fuel efficiency. Ignoring this problem not only increases the risk of accidents due to sudden speed fluctuations but can also lead to further damage within the vehicle's systems, resulting in more extensive and costly repairs. Therefore, it is essential to prioritize the inspection and repair of the cruise control system by a qualified mechanic or dealership. Taking prompt action ensures not only your safety on the road but also the overall integrity and performance of your vehicle, making it a critical aspect of responsible vehicle maintenance.

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